13-Letter Words Containing: TROM

• of or relating to or involving spectrometry

• spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer

• a temporary magnet made by coiling wire around an iron core; when current flows in the coil the iron becomes a magnet

• meter to measure electrostatic voltage differences; draws no current from the source

• A mechanical device that measures the ease of penetration of an object into a semisolid

• A device that measures the penetrating power of electromagnetic radiation (especially X-rays)

• the act of putting one thing into another

• A laminated, columnar, rock-like structure constituting a large share of all fossils from 3.5 to 0.5 billion years ago, with some still being formed at present, some or all of which result from the deposit of minerals by microorganisms such as cyanobacteria.